diff --git a/spec/integration/mechanize/spec/spec_helper.rb b/spec/integration/mechanize/spec/spec_helper.rb
index 038ae76..95ad24a 100644
--- a/spec/integration/mechanize/spec/spec_helper.rb
+++ b/spec/integration/mechanize/spec/spec_helper.rb
@@ -21,7 +21,9 @@ Spec::Runner.configure do |config|
   end
 
   config.after :suite do
-    Process.kill("TERM", File.read("rack.pid").to_i)
+    if File.exists?("rack.pid")
+      Process.kill("TERM", File.read("rack.pid").to_i)
+    end
   end
 end